Sensor



FIG. 1 is a perspective view of an embodiment of the ornamental design of a sensor.

FIG. 2 is a bottom view of an embodiment of the ornamental design of the sensor of FIG. 1.

FIG. 3 is a top view of an embodiment of the ornamental design of the sensor of FIG. 1.

FIG. 4 is a side view of an embodiment of the ornamental design of the sensor of FIG. 1; and,

FIG. 5 is a front/back view of an embodiment of the ornamental design of the sensor of FIG. 1. 

CLAIM The ornamental design for a sensor, as shown and described. 